ol, ul {
    list-style: none;
}
body{
    background-color: red;
}
.page-enter-active, .page-leave-active {
    transition: opacity .5s;
}
.page-enter, .page-leave-active {
    opacity: 0;
}

.container {
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}